Does mechanical condition affect duty?

No. A damaged STS clears at the same rate as an intact car from the same plant, because what counts is the country of final assembly. Condition does affect the purchase price, and through it the customs value and the taxes charged on it.

How long does a VIN check take?

A matter of seconds. You enter the number and get the country and city of the assembly plant plus the answer to whether that STS meets the condition for the customs preference. The check is free, needs no account and can be repeated for every lot you consider.

Does a sale in the USA mean assembly in the USA?

No. American sales also move cars built in Canada, Mexico, Europe and Asia. Where a car was auctioned has nothing to do with the origin condition, which is why the assembly plant of a STS is checked separately, on the VIN.

Who deals with customs clearance?

We do. We put together the proof of origin, prepare the customs declaration and keep contact with the agency. For a STS that qualifies on its VIN we apply for the 0% rate, and the customs office decides on the documents.

What about models built in two countries at once?

That is a common case, and it is exactly where the VIN becomes essential. Two STS cars from the same model year can carry different rates, 0% and 10%, because they came off lines on different continents.

Where the Cadillac STS is assembled

Our database holds 1,403 Cadillac STS cars with an American assembly plant on record. Those clear at 0%, the rest at 10% — one model name, two different rates. Before you set a bidding limit, check which line the car you are looking at came off.

Where is the Cadillac STS assembled?

STS cars off American lines carry the VIN prefixes 1G6 in our database. A prefix shows the manufacturer and the country, but the 0% rate is decided by the final assembly plant read for the specific number. The table shows how many cars from each plant have passed through us.

Plant	Country	VIN prefix	Cars in our database	Duty
Lansing - Grand River	United States	1G6	1,261	0% duty
Lansing	United States	1G6	142	0% duty

Made in USA • Tax 0%

How do you check a specific car?

The check runs on the VIN, not on the auction description. You enter the number of a Cadillac STS and you get the assembly plant plus whether the origin condition is met. The lot description, the seller's country and the yard location say nothing about where the car was built.

How much will you save?

Run it down both routes, because the STS exists on both: a car from an American line at 0% duty, a car from a plant outside the USA at 10%. The rest of the bill is identical — excise by engine size and 23% VAT. The calculator shows both versions from the same inputs.

Work out the import cost

What the import cost is made of

You get the rates here, not a finished figure — the calculator produces that on current data. Since 2026-07-01, duty on cars finally assembled in the States is 0% and 10% on everything else. Excise (3.1% or 18.6%) and 23% VAT are charged whatever the origin of the STS.

Component	Rate
Duty — car assembled in the USA	0%
Duty — everything else	10%
Excise	3.1% up to 2.0 l, 18.6% above 3.5 l
VAT	23%

Rates, not amounts — the calculator works the sum out on current data.

Zero-duty paperwork — our job

Proof of origin and clearance are on us. For a STS that the VIN places on an American line, we assemble the plant documentation and declare the car at the 0% rate. What we need from you is the car you picked and its VIN.

What to watch for when buying at auction

Before you raise your bid, look at the damaged area. On a STS it is most often features.lots.characteristics.damage_type.front_end, and then the key question is whether the body structure was disturbed. Origin is a separate check, run on the VIN — the two things are independent of each other.

Damage	Cars in our database
Front end	656
Side	201
Rear end	164

From the USA or from Europe?

Europe hands you a car ready to register; the States hand you a wider choice of versions and of damaged cars. On a STS origin joins the list: a car assembled in the USA clears at 0%, one from outside the preference at 10%. That is the first thing to check when you compare offers.

See current listings: Cadillac STS